JP2000067621A - Lighting system for bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the possibility of the heat injury and the electric shock even when a person touches a lighting system, and to prevent an inside of a bathroom from being narrowed, by mounting a linear luminescent part on a wall surface of the bathroom, and optically connecting the linear luminescent part and a light source mounted outside of the bathroom by a light transmitting tube. SOLUTION: A linear luminescent part 3 is mounted over the full length or almost full length of a wall surface of a bathroom separately from a main lighting system 1 mounted on an upper part of the wall surface of the bathroom, to form an auxiliary lighting system 2. This linear luminescent part 3 and a light source 4 mounted outside of the bathroom are optically connected by a light transmitting tube 5 which transmits the light. The linear luminescent part 3 is mounted on, for example, a wall part close to a washing metal fitting or shower metal fitting installation area of the bathroom, or a wall part close to a ceiling of the bathroom. The linear luminescent part 3 comprises, for example, a transparent annular clad, and a light reflecting layer mounted between a transparent core having the refraction factor higher than that of the clad and an inner core at the other side of the clad.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for a bathroom for illuminating the interior of a bathroom.

[0002]

2. Description of the Related Art For example, it is a common practice to wash a face, shave, and wash hair in a bathroom when taking a bath while sitting on a stool while washing with water. However, lighting in the bathroom is usually performed with lighting fixtures or the like in which incandescent lamps, etc. provided on the wall near the ceiling are covered with a translucent waterproof case. When performing a sled or the like, there is a danger that a face may be cut off with a razor during shaving without sufficiently reaching the light, which is inconvenient.

Therefore, as described in, for example, Japanese Utility Model Laid-Open No. 3-125153, the entire length or almost the entire length of the side wall is provided in the lower level including the middle and high levels of the adjacent side wall in the bathroom. There is proposed a configuration in which a lamp house having a desired width is provided, a lighting device (for example, a fluorescent lamp or the like) is disposed therein, and an opened entrance is closed with a transparent member.

[0004]

However, in such a configuration in which the lamp house projects greatly into the bathroom,
There is a risk of burns due to the height at which the body touches, and a risk of electric shock because the electrical wiring is drawn into the bathroom. Furthermore, if a lamp house is housed inside the wall, it is necessary to ensure a large depth of the wall, and the size of the bathroom is reduced accordingly.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a bathroom lighting device that is free from the danger of burns and electric shocks even when touched, and that is not likely to reduce the size of the interior of the bathroom. Is what you do.

[0006]

That is, according to the present invention, a light source is provided outside the bathroom, and a linear light-emitting portion is provided on the wall surface of the bathroom over the entire length or almost the entire length of the bathroom. The optical transmission unit is optically connected to the light emitting unit by a light transmission tube.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a bathroom lighting device according to a first embodiment of the present invention. This lighting device is provided as an auxiliary lighting device 2 separately from a main lighting device 1 provided on an upper wall surface. A light emitting unit 3 attached to the side wall surface, a light source 4 provided at an appropriate location outside the bathroom, and an optical transmission unit 5 for transmitting light between the light source 4 and the linear light emitting unit 3. It is configured.

The linear light-emitting portion 3 has a half or entire exposed portion on the front side of the wall surface (or a housing room slightly larger than the outer diameter of the linear light-emitting portion is provided on the wall surface side), and is housed in this chamber to cover the surface. It may be closed by a transparent member), and is fixed by an appropriate mounting member 30, for example, as shown in FIG. For example, as shown in FIG. 2, the linear light emitting section 3 of this embodiment has a surface of a wall surface W (a bathroom surface side).
Although it is fixed by a bracket B provided partially embedded in a groove formed in the hole, it may be mounted in a state of completely protruding from the wall surface W as shown in FIG.

As shown in FIG. 4, the linear light emitting section 3 of this embodiment comprises a transparent annular cladding 31, a transparent core 32 having a higher refractive index than the cladding 31,
An optical transmission tube (linear illuminant) composed of a light reflection layer 33 provided between an inner surface on the other side 1 and the core 32 is used. Further, a reflective protective layer 34 is formed on the outer surface of the other side of the clad 31 so as to cover the light reflecting layer 33, thereby further improving the reflection efficiency. Although the core diameter of the linear light emitting section 3 is not particularly limited, for example, when one LED is used as the light source 4, 2 to 30
mm, but especially 4 to 15 mm, and the length is 0.1
About 5 m, particularly preferably 0.2 to 2 m. In addition, the light reflection layer may be formed in a strip shape in the length direction of the clad in a state where the light reflection layer slightly enters the inside from the core surface.

Here, as a material (cladding material) for forming the tubular cladding 31, a material having flexibility, such as plastic or elastomer, which can be formed into a tube and has a low refractive index is used. Is preferred. Specific examples thereof include polyethylene, polypropylene, polyamide, polystyrene, ABS resin, polymethyl methacrylate, polycarbonate, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyethylene-vinyl acetate copolymer, polyvinyl alcohol, and polyethylene-polyvinyl alcohol. Polymer, fluororesin, silicone resin, natural rubber, polyisoprene rubber, polybutadiene rubber, styrene-butadiene copolymer, butyl rubber, halogenated butyl rubber, chloroprene rubber, acrylic rubber,
EPDM, acrylonitrile-butadiene copolymer, fluororubber, silicone rubber and the like can be mentioned.

Of these, silicone polymers and fluorine polymers having a low refractive index are particularly preferred. Specifically, silicone polymers such as polydimethylsiloxane polymer, polymethylphenylsiloxane polymer and fluorosilicone polymer, and polytetrafluoroethylene (P
TFE), ethylene tetrafluoride-propylene hexafluoride copolymer (FEP), ethylene tetrafluoride-perfluoroalkoxyethylene copolymer (PFE), polychlorotrifluoroethylene (PCTFE), ethylene tetrafluoride-ethylene Copolymer (ETFE), polyvinylidene fluoride, polyvinyl fluoride, vinylidene fluoride-ethylene trifluoride ethylene chloride copolymer, vinylidene fluoride-propylene hexafluoride copolymer, vinylidene fluoride-propylene hexafluoride- Examples thereof include a tetrafluoroethylene terpolymer, a tetrafluoroethylene propylene rubber, and a fluorine-based thermoplastic elastomer, and a fluorine-based polymer is particularly preferable. These materials can be used alone or in combination of two or more.

On the other hand, as a material (core material) for forming the transparent core 32, a solid material is preferable, and a (meth) acrylic polymer, polycarbonate, polystyrene, silicone rubber, ethylidene norbornene polymer, SB
Examples thereof include S, SIS, and SEBS (styrene-ethylene-butadiene-styrene block polymer). Among them, (meth) acrylic polymers are preferable.

As the (meth) acrylic polymer, a homopolymer obtained by polymerizing one kind of monomer selected from acrylic acid and methacrylic acid and an ester thereof with a monohydric alcohol, or a copolymer of two or more kinds of monomers is used. And a copolymer made of In this case, examples of the monohydric alcohol include those having 1 to 22 carbon atoms. Among them, acrylic acid and methacrylic acid, and these and lower alcohols (1 to 5 carbon atoms, preferably 1 to 5 carbon atoms)
3, and most preferably, a copolymer of a monomer selected from an ester with 1) and a monomer represented by the following general formula (1) is excellent in flexibility or flexibility and excellent in light transmittance. Is also preferable because it is excellent.

[0014]

Embedded image

In the formula, R ¹ is a hydrogen atom or a methyl group, R ² is an alkyl group having 8 to 20, preferably 10 to 16, more preferably 12 to 14 carbon atoms. Although it may be a group or a mixed alkyl group, it is most preferably a mixed alkyl group having 12 or 13 carbon atoms. In this case, the ratio between the alkyl group having 12 carbon atoms and the alkyl group having 13 carbon atoms is usually 20:80 to 80:20, particularly 40: 6 as a weight ratio.
The ratio is preferably 0 to 60:40. The copolymerization ratio of the monomer selected from the above-mentioned acrylic acid, methacrylic acid and lower alcohol esters thereof with the monomer of the above-mentioned chemical formula is appropriately selected.
It is preferably 79:21, particularly preferably 30:70 to 65:35.

Although the diameter of the core 32 is not particularly limited, it is usually 2 to 30 mm, especially 5 to 15 mm.

The light reflecting layer 33 is preferably formed of scattering particles that scatter light. In this case, as the scattering particles, for example, organic polymer particles such as silicone resin particles and polystyrene resin particles, Al ₂ O ₃ , TiO ₂ ,
Examples thereof include metal oxide particles such as SiO ₂ , sulfate particles such as BaSO ₄ , and carbonate particles such as CaCO ₃ , and one of these can be used alone or in combination of two or more.

The average particle size of the particles is 0.1 to 30 μm.
m, particularly preferably 1 to 15 μm, and when it is larger than 30 μm, according to the method for manufacturing an optical transmission tube described below, the core liquid is likely to precipitate during injection into the cladding tube,
There may be disadvantages.

The thickness of the light reflection layer 33 is not particularly limited, but is preferably 10 to 200 μm, particularly preferably 50 to 100 μm. If it is too thin, less light will be reflected, resulting in lower brightness.If it is too thick, more light will be reflected, resulting in higher brightness. May have a disadvantage of lowering the brightness.

The reflective protective layer 34 may be any material that does not transmit the light to the outside when the light leaks from the light reflecting layer 33. In this case, the light does not absorb the leaked light and does not reflect the light. Is preferable, specifically, silver,
A metal foil such as aluminum, a metal sheet, a reflective tape, a vapor deposition tape, or a coating film in which the above-described scattering particles that scatter light are dispersed can be used.

In this case, the reflective protective layer 34 is formed as shown in FIG.
As shown in FIG. 6, the outer surface of the clad 31 may cover only the light reflecting layer 33, or may extend beyond the light reflecting layer 33 to one side to leave the light emitting portion 35 as shown in FIG. May be formed.

In the light transmission tube, the scattering particles are dispersed in a solution for forming a core containing the monomer, and the dispersed particles are put into a cladding tube in which a cladding 31 is to be formed.
The clad tube is sealed for approximately 30 minutes with both ends sealed.
The particles dispersed in the solution for forming the core 32 are settled for 48 hours. In some cases, centrifugation or the like may be performed. Thereafter, the monomer was polymerized and cured while the particles were settled, so that the light reflecting layer 33 composed of the particles slightly penetrated into the core between the clad 31 and the core 32 and in some cases from the core surface. An optical transmission tube formed in a state is obtained.

In this case, the polymerization method of the monomer is not particularly limited, but generally, t-butyl hydroperoxide, di-t-butyl peroxide, lauroyl peroxide, benzoyl peroxide, dimyristyl peroxydicarbonate, Organic peroxides such as t-butylperoxyacetate, t-butylperoxy (2-ethylhexanoate) and cumylperoxyoctoate; azo compounds such as azobisisobutyronitrile and azobiscyclohexanenitrile; A method of adding a polymerization initiator and polymerizing at 50 to 120 ° C. for 1 to 20 hours can be employed. At this time, it is recommended to polymerize the core-forming solution from one end or both ends of the clad tube while pressurizing the core-forming solution because bubbles and the like are not generated in the core.

The light source 4 of this embodiment is installed at an appropriate place outside the bathroom, for example, in a dressing room (in addition to this, for example, a ceiling or any other appropriate place). LED (light-emitting diode) is disposed at at least one end in the length direction (only the left end in this embodiment).
Is used. The emission color of this light emitting diode is
Red, blue, green, yellow, orange, white and the like can be appropriately selected and used depending on the purpose. The number of LEDs may be one, or a plurality of LEDs may be provided to increase the amount of light. In this case, the light may be incident from one end or from both ends. If the light is incident from both ends, light can be more uniformly emitted with high luminance. The same applies to the emission color of the LED, and it may be a single color or a plurality of colors. The light emitting method of the LED may be always on or blinking.

The optical transmission section 5 of this embodiment is structurally fixed at the base end to an appropriate connector by bonding or caulking. The light source 4 using an LED is also fixed integrally with the light transmission unit 5 via a connector.

The light transmitting section 5 transmits the light emitted from the light source 4 to the linear light emitting section 3, that is, does not emit the light to the outside at this portion. It is arranged on the back (inside) of the wall. Therefore,
The light transmitting section 5 has a structure in which a light reflecting layer or a reflective protective layer for light emission is provided on the entire circumference in a linear light emitting section composed of a light transmitting tube, for example. For the purpose, it is also possible to insert in a transparent resin pipe or the like, or to cover a transparent heat-shrinkable tube for protection of the light transmission tube and sealing of the entire linear light emitting portion.

Further, a metal material such as stainless steel, gold, silver or the like is vapor-deposited on the entire outer peripheral surface of the light transmission section 5,
Sputtering, plating reflective tape, applying reflective paint, providing metal foil, coating reflective particles such as titanium oxide, providing a light reflective layer using a pigmented vinyl tape Is also good.
In addition, a fixing channel may be attached to the light transmission tube, and the channel may have a reflection function (function as a reflective protective layer). This channel includes
Made of metal materials such as aluminum and stainless steel,
Plastics or elastomers filled and kneaded with highly reflective fine particles (powder) may be used.

Therefore, according to this embodiment, in the bathroom, in addition to the main luminaire 1, the entire length or almost the entire length of the wall adjacent to the flush fitting installation area (the mirror is also provided) in the bathroom. Since the linear light emitting section 3 is provided as an auxiliary lighting device, shave, hair wash, etc. can be performed while confirming one's face with a brightly illuminated mirror, so that safety is high and usability is improved. In this embodiment, the linear light-emitting portion 3 is provided near the installation area of the flush fitting. However, as shown in FIG. 7, the entire length of the wall portion close to the installation area of the shower head in the bathroom is also provided. Alternatively, the linear light emitting portion 3 may be provided as an auxiliary lighting device over substantially the entire length. In this case, it may be provided not only on one surface of the wall surface but also on two or more wall surfaces.

Next, a second embodiment of the present invention will be described. In the lighting device 2 of this embodiment, the linear light emitting section 3 extends over the entire length or almost the entire length of the wall portion close to the ceiling of the bathroom.
The boundary between the ceiling surface and the wall surface in the bathroom is hidden by the linear light emitting part 3 so that the boundary between the ceiling surface and the wall surface cannot be directly seen with the naked eye. You can hide that low.

Further, according to this embodiment, when the linear light-emitting portion 3 emits light near the junction between the ceiling portion and the wall portion, the upper portion of the wall surface rises due to the effect of the indirect lighting, and the portion is brought to attention. In other words, it is possible to psychologically distract the consciousness of the ceiling surface, and even in a bathroom with a low ceiling and a narrow space, the effect of making the narrowness and lowness difficult to feel psychologically is obtained.

[0031]

As described above, according to the present invention, a light source is provided outside a bathroom, and a linear light-emitting portion is provided on a wall surface of the bathroom over the entire length or almost the entire length.
Since the light source and the linear light emitting part were optically connected by the light transmission tube, there is no need for lighting means such as a conventional fluorescent lamp or incandescent lamp that draws electric wiring into the bathroom and lights it.
Therefore, even if touched, there is no risk of burns or electric shock, and a highly safe lighting device can be provided.

Further, according to the present invention, a linear light-emitting body whose diameter can be easily reduced is used as a light source for illumination, and the illumination can be performed without using a relatively large light source such as a fluorescent lamp or an incandescent lamp. Since it is possible, a dedicated lamp house with a large depth is not required, and there is no possibility that the interior of the bathroom is narrowed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a bathroom lighting device of the present invention.

FIG. 2 is a cross-sectional view showing a state where a linear light emitting unit is installed on a wall.

FIG. 3 is a cross-sectional view showing another installation state of the linear light emitting unit.

FIG. 4 is a side sectional view showing a configuration of a linear light emitting unit.

FIG. 5 is a longitudinal sectional view showing another configuration of the linear light emitting section.

FIG. 6 is a longitudinal sectional view showing still another configuration of the linear light emitting section.

FIG. 7 is a schematic configuration diagram showing a modified example of the bathroom lighting device of the present invention.

FIG. 8 is a schematic configuration diagram showing another bathroom lighting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main lighting fixture 2 (Auxiliary) lighting fixture 3 Linear light emitting part 4 Light source 5 Optical transmission part

Claims (3)

[Claims] 1. A light source is provided outside a bathroom, a linear light-emitting portion is provided on a wall surface of the bathroom over the entire length or almost the entire length, and an optical transmission tube is provided between the light source and the linear light-emitting portion by an optical transmission tube. A lighting device for a bathroom, wherein the lighting device is connected to a lighting device. 2. The bathroom lighting device according to claim 1, wherein a linear light-emitting portion is provided over the entire length or substantially the entire length of the wall portion near the washing metal fitting or shower fitting installation area of the bathroom. 3. The bathroom lighting device according to claim 1, wherein a linear light-emitting portion is provided over the entire length or substantially the entire length of the wall portion close to the ceiling of the bathroom.